Torsion bars for stock suspension rebuild
The.920's will be stiffer, I would stay with the original bars unless you want a firmer ride. Not knowing what is in your 69 cuda engine and suspension wise i would guess you have .870 bars and those are available. I have .890 bars (heavy duty suspension) in my 67 with KYB gas shocks and a aftermarket antiswaybar and the ride is very firm. If you are trying to keep to the stock ride use Monroe or Gabriel gas shocks. mancini racing (
www.maniciniracing.com) has the .870,.890 and .920 bars for $140.